Approximately how long has the moon been geologically inactive?
a. 1 billion years
b. 3 billion years
c. 4 billion years
d. 4.5 billion years

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Explain what happens at the saturation point when adding salt to water at room temperature.

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!